Correlation and Regression

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Question : 152 of 156

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Probable Error can be obtained using Correlation coefficient as

$0.6745 × \;{1-r^{2}}/{√{N}}$
${2}/{3} × \;{1+r^{2}}/{√{N}}$
${1+r^{2}}/{√{N}}$
${1-r^{2}}/{r^{2}}$

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